How to convert to decimal python code example

Example 1: py convert binary to int

# Convert integer to binary
>>> bin(3)
'0b11'

# Convert binary to integer
>>> int(0b11)
3

Example 2: decimal to int python

print "%.4f" % 3.3333333333
3.3333
print "%.4f" % 6.6666666666
6.6667